Messier Objects: Guide to the Bright Galaxies, Nebulae and Clusters Listed in the Messier Catalogue

Eta Tauri

Messier 45 (M45), also known as the Pleiades or Seven Sisters, is a bright open star cluster located in the constellation Taurus, the Bull. The Pleiades cluster has an apparent magnitude of 1.6 and lies at an average distance of 444 light years from Earth. The cluster is also known as Melotte 22. It does … [Read more…]